Coordinated Type 2 AC Surge Protection for 1P+N Systems
LY1-C40/1(S)+1 is a pluggable 1P+N Type 2 AC surge protective device designed for single-phase plus neutral distribution systems. Its coordinated MOV and GDT protection paths help limit transient overvoltage between L-N and N-PE while providing fast response and low residual voltage.
1P+N Type 2 AC SPD for sub-distribution board protection
20kA nominal and 40kA maximum discharge current
MOV protection for L-N and GDT protection for N-PE coordination
Replaceable pluggable modules with optional remote status contact
Suitable Applications
LY1-C40/1(S)+1 is suitable for single-phase plus neutral AC systems requiring coordinated Type 2 protection at the sub-distribution or equipment-panel level.
Tableaux de sous-distribution
For L-N and N-PE surge protection in single-phase plus neutral distribution boards.
Residential Panels
Suitable for residential control boxes and service panels using a 1P+N circuit arrangement.
Control Cabinets
For industrial control cabinets and equipment panels requiring compact Type 2 protection.
Solar AC Panels
For the AC side of solar systems when voltage rating and protection mode match the system design.
FAQ
Common questions about LY1-C40/1(S)+1 pluggable 1P+N Type 2 AC surge protective device selection.
What is LY1-C40/1(S)+1 used for?
It is used for Type 2 surge protection in single-phase plus neutral AC distribution systems, with coordinated protection between L-N and N-PE.
What does 1P+N mean?
1P+N means the SPD protects a single-phase line and neutral arrangement, with separate L-N and N-PE protection paths.
Why does this model use MOV and GDT protection?
The MOV provides fast voltage clamping on the L-N path, while the GDT supports coordinated discharge on the N-PE path with low leakage under normal conditions.
What discharge current ratings does it provide?
The SPD provides 20kA nominal discharge current In and 40kA maximum discharge current Imax for both L-N and N-PE protection paths.
What voltage options are available?
L-N maximum continuous operating voltage options include 75V, 150V, 275V, 320V, 385V, and 440V AC. The N-PE continuous operating voltage is 255V.
What should be confirmed before ordering?
Confirm the system voltage, 1P+N circuit arrangement, L-N and N-PE protection mode, backup fuse, wiring cross-section, installation space, and remote contact requirement.
